Alert archive / Georgia / Tornado Watches in 2004

Tornado Watch 828

September 16, 200423 counties in Alabama; 90 counties in Georgia; Anderson County, Oconee County, Pickens County, South Carolina

The Storm Prediction Center issued this tornado watch at Sep 16, 2004, 9:45 AM CDT for 23 counties in Alabama; 90 counties in Georgia; Anderson County, Oconee County, Pickens County, South Carolina. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued
Sep 16, 2004, 9:45 AM CDT (14:45 UTC)
Expired
Sep 16, 2004, 8:00 PM CDT
In force
10 hr
Issued by
the Storm Prediction Center
All 116 counties

Autauga County, AL, Barbour County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, DeKalb County, AL, Elmore County, AL, Etowah County, AL, Jackson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marshall County, AL, Montgomery County, AL, Randolph County, AL, Russell County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Baldwin County, GA, Banks County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Carroll County, GA, Catoosa County, GA, Chattahoochee County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Douglas County, GA, Elbert County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Greene County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Hart County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Lumpkin County, GA, Macon County, GA, Madison County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Murray County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Pulaski County, GA, Putnam County, GA, Rabun County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stephens County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Towns County, GA, Troup County, GA, Twiggs County, GA, Union County, GA, Upson County, GA, Walker County, GA, Walton County, GA, Webster County, GA, White County, GA, Whitfield County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Anderson County, SC, Oconee County, SC, Pickens County, SC

The radar

The Atlanta radar (KFFC), 57 km from the middle of the area, began a volume at 14:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

65 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Sep 16, 10:03 AM CDTSevere Thunderstorm WarningFFCButts, Henry27 min
Sep 16, 10:11 AM CDTFlash Flood WarningBMXAutauga, Elmore, Lowndes, Montgomery4 hr
Sep 16, 10:22 AM CDTTornado WarningBMXRussell23 min
Sep 16, 10:22 AM CDTTornado WarningFFCChattahoochee, Marion23 min
Sep 16, 10:30 AM CDTTornado WarningFFCHarris, Muscogee15 min
Sep 16, 10:54 AM CDTTornado WarningBMXRussell21 min
Sep 16, 10:57 AM CDTFlash Flood WarningBMXBarbour, Bullock, Chambers, Coosa, Lee, Macon and 3 more4 hr
Sep 16, 10:59 AM CDTTornado WarningFFCStewart16 min
Sep 16, 11:13 AM CDTTornado WarningFFCChattahoochee, Muscogee, Stewart17 min
Sep 16, 11:16 AM CDTTornado WarningFFCMarion29 min
Sep 16, 11:40 AM CDTFlash Flood WarningBMXCalhoun, Clay, Cleburne, Jefferson, Randolph, St. Clair and 2 more4 hr
Sep 16, 12:18 PM CDTTornado WarningFFCMeriwether, Talbot12 min
Sep 16, 12:45 PM CDTTornado WarningFFCCarroll, Haralson15 min
Sep 16, 12:47 PM CDTTornado WarningFFCMeriwether, Talbot13 min
Sep 16, 12:51 PM CDTFlash Flood WarningBMXBlount, Cherokee, Etowah, Walker, Winston4 hr
Sep 16, 1:11 PM CDTTornado WarningFFCHaralson19 min
Sep 16, 1:26 PM CDTTornado WarningFFCClarke, Jackson, Oconee34 min
Sep 16, 1:28 PM CDTTornado WarningFFCFloyd, Haralson, Polk32 min
Sep 16, 1:42 PM CDTTornado WarningFFCMadison, Oglethorpe33 min
Sep 16, 1:49 PM CDTFlash Flood WarningFFCCoweta3 hr
Sep 16, 1:56 PM CDTFlash Flood WarningHUNMarshall6 hr
Sep 16, 1:56 PM CDTTornado WarningHUNDeKalb19 min
Sep 16, 1:56 PM CDTTornado WarningFFCLamar, Pike, Spalding34 min
Sep 16, 1:59 PM CDTFlash Flood WarningFFCCarroll3 hr
Sep 16, 1:59 PM CDTTornado WarningFFCMadison, Oglethorpe31 min
Sep 16, 2:11 PM CDTFlash Flood WarningFFCDouglas, Haralson, Paulding4 hr
Sep 16, 2:14 PM CDTTornado WarningFFCMadison, Oglethorpe31 min
Sep 16, 2:17 PM CDTFlash Flood WarningFFCMeriwether, Talbot3 hr
Sep 16, 2:20 PM CDTFlash Flood WarningHUNDeKalb6 hr
Sep 16, 2:33 PM CDTTornado WarningGSPFranklin42 min
Sep 16, 2:35 PM CDTTornado WarningFFCPike, Upson25 min
Sep 16, 2:39 PM CDTTornado WarningFFCMonroe36 min
Sep 16, 2:44 PM CDTTornado WarningHUNDeKalb21 min
Sep 16, 2:45 PM CDTFlash Flood WarningFFCClayton, Fayette, Fulton3 hr
Sep 16, 2:50 PM CDTFlash Flood WarningBMXChambers, Lee, Tallapoosa3 hr
Sep 16, 2:55 PM CDTFlash Flood WarningHUNJackson6 hr
Sep 16, 2:55 PM CDTTornado WarningFFCCrawford, Upson35 min
Sep 16, 3:00 PM CDTTornado WarningFFCLamar, Pike, Spalding30 min
Sep 16, 3:01 PM CDTFlash Flood WarningBMXCalhoun, Clay, Cleburne, Jefferson, Randolph, St. Clair and 2 more5 hr
Sep 16, 3:06 PM CDTTornado WarningFFCClayton, Fayette24 min
Sep 16, 3:14 PM CDTTornado WarningGSPFranklin, Stephens61 min
Sep 16, 3:27 PM CDTTornado WarningFFCLamar, Spalding33 min
Sep 16, 3:28 PM CDTFlash Flood WarningFFCCobb4 hr
Sep 16, 3:40 PM CDTTornado WarningFFCWilkes35 min
Sep 16, 3:48 PM CDTTornado WarningGSPOconee42 min
Sep 16, 4:02 PM CDTFlash Flood WarningFFCDeKalb, Henry, Lamar, Pike, Rockdale, Spalding and 1 more3 hr
Sep 16, 4:09 PM CDTTornado WarningFFCBibb, Monroe36 min
Sep 16, 4:11 PM CDTTornado WarningGSPElbert49 min
Sep 16, 4:27 PM CDTFlash Flood WarningFFCCobb, DeKalb, Fulton6 hr
Sep 16, 4:43 PM CDTFlash Flood WarningFFCCherokee4 hr
Sep 16, 4:45 PM CDTTornado WarningGSPFranklin45 min
Sep 16, 4:52 PM CDTTornado WarningGSPHart53 min
Sep 16, 4:57 PM CDTFlash Flood WarningBMXBlount, Cherokee, Etowah3 hr
Sep 16, 5:21 PM CDTFlash Flood WarningFFCForsyth, Gwinnett6 hr
Sep 16, 5:21 PM CDTTornado WarningGSPAnderson54 min
Sep 16, 5:37 PM CDTTornado WarningGSPOconee53 min
Sep 16, 5:39 PM CDTFlash Flood WarningFFCPickens6 hr
Sep 16, 6:00 PM CDTFlash Flood WarningFFCDeKalb, Fulton18 hr
Sep 16, 6:00 PM CDTFlash Flood WarningFFCDeKalb, Fulton6 hr
Sep 16, 6:30 PM CDTFlash Flood WarningFFCDeKalb, Fulton6 hr
Sep 16, 6:42 PM CDTFlash Flood WarningFFCBartow, Catoosa, Cherokee, Dawson, Fannin, Gilmer and 8 more6 hr
Sep 16, 7:37 PM CDTFlash Flood WarningFFCBartow, Chattooga, Dade, Floyd, Gordon, Walker5 hr
Sep 16, 7:40 PM CDTFlash Flood WarningFFCClayton5 hr
Sep 16, 7:45 PM CDTFlash Flood WarningHUNDeKalb6 hr
Sep 16, 7:56 PM CDTFlash Flood WarningHUNMarshall6 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 2.8 hours before the alert went out and 63 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2004-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 417 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2004-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 277 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
417 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
277 m²/s²
0-3 km storm-relative helicity
424 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 161454
SEL8  
SPC WW 161445
ALZ000-GAZ000-SCZ000-170100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 828
NWS STORM PREDICTION CENTER NORMAN OK
1045 AM EDT THU SEP 16 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       CENTRAL AND NORTHEAST ALABAMA
       CENTRAL AND NORTHERN GEORGIA
       FAR NORTHWEST SOUTH CAROLINA

EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1045 AM UNTIL 900
PM EDT.

TORNADOES...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS
LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 110 STATUTE MILES EAST AND
WEST OF A LINE FROM 45 MILES SOUTH OF COLUMBUS GEORGIA TO 60 MILES
NORTHEAST OF ROME GEORGIA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 826. WATCH NUMBER 826 WILL NOT BE IN EFFECT AFTER
1045 AM EDT. 

DISCUSSION...DIURNAL HEATING WILL LIKELY INCREASE INTENSITY OF
CONVECTIVE BANDS ROTATING AROUND IVAN WHERE VERY STRONG LOW LEVEL
SHEAR WILL BE SUPPORTIVE OF ROTATION AND A FEW TORNADOES THROUGH THE
EARLY EVENING. MAIN THREAT AREA WILL BE ALONG AND EAST OF THE PATH
OF IVAN/S CENTER.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME
TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI
WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 16035.


...EVANS

315,0864 345,0862 345,0822 315,0830

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 15, 8:09 PM CDTMesoscale DiscussionSPCBaldwin, Barbour, Bullock, Butler, Clarke, Coffee and 17 more2 hr
Sep 15, 10:35 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Chambers, Chilton and 20 more115 min
Sep 16, 1:10 AM CDTTornado WatchSPCAutauga, Baldwin, Barbour, Bibb, Bullock, Butler and 34 more9 hr
Sep 16, 2:57 AM CDTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Bullock, Butler and 33 more2 hr
Sep 16, 7:03 AM CDTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Bullock, Butler and 32 more117 min
Sep 16, 9:09 AM CDTMesoscale DiscussionSPCAutauga, Barbour, Bullock, Butler, Calhoun, Chambers and 25 more66 min
Sep 16, 9:50 AM CDTTornado WatchSPCCoffee, Dale, Geneva, Henry, Houston, Pike10 hr
Sep 16, 1:16 PM CDTMesoscale DiscussionSPCBarbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 15 more119 min
Sep 16, 5:38 PM CDTMesoscale DiscussionSPCCalhoun, Chambers, Cherokee, Clay, Cleburne, DeKalb and 6 more2 hr
Sep 16, 5:00 AM CDTTornado WatchSPCAtkinson, Ben Hill, Berrien, Brooks, Clinch, Coffee and 9 more5 hr
Sep 16, 9:58 AM CDTMesoscale DiscussionSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 16 more2 hr
Sep 16, 11:20 AM CDTTornado WatchSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 19 more9 hr
Sep 16, 2:31 PM CDTMesoscale DiscussionSPCBulloch, Burke, Candler, Columbia, Effingham, Emanuel and 11 more119 min

Nearby

Tornado Watches in Georgia, 2004Tornado Watches in Alabama, 2004Tornado Watches in South Carolina, 2004Every tornado watch in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.